Senior Power Electronics Engineer

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ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper‑scale campuses, validated by top U.S. national labs, and certified for grid‑safe operation by major utilities.

With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.

We’re looking for a Senior Power Electronics Engineer with project‑based engineering experience to lead the AI UPS electrical‑related hardware product design, documentation, and project‑specific technical compliance. This is a product‑focused role that requires fluency in power electronics and BESS systems, preferably with UPS systems in mission‑critical applications, and the ability to interface with project, commissioning, and O&M engineering teams.

Hybrid (4 days in office) in Houston, TX

• Support the business development team by providing technical proposals (SLDs and GAs) that meet the customer’s needs.
• Compile product technical information packages for the project engineering team.
• Co‑lead review and validation of the AI UPS electrical‑related product during the project execution phase.
• Maintain technical documentation including as‑built drawings.
• Support product development of the AI UPS by capturing design improvement feedback from the design, commissioning, and O&M phases.
• Recommend design approaches and vendors for the main equipment.
• Participate in product design sprints with the development team.
• Attend project design engineering meetings with customer and project engineering team.
• Support the product’s commissioning phase.

• Bachelor’s degree in Electrical Engineering, Power Electronics Engineering, or a similar technical field.
• 8+ years of hands‑on power electronics engineering experience in project‑based or industrial settings.
• Proven system‑level design experience of MW‑scale power electronics equipment.
• Understanding of BESS systems integration with power electronics equipment.
• Project management skills.
• Excellent communication skills across technical and non‑technical teams.
• Willingness to travel up to 20% for product FAT inspection and site commissioning witnessing.

• Experience with BESS, UPS/mission critical applications, or utility‑scale infrastructure.

• Competitive salary + performance bonus
• 401(k) match, health, vision, dental
• Paid time off and company holidays
• Work that matters—building resilient, secure infrastructure for the future of energy